The text was updated successfully, but these errors were encountered:. Sorry, something went wrong. I have this exact problem when attempting to build the just released 4. Any suggestions? Thanks alalek that did fix it.
OS: Windows 10 Pro 64 -bit Cygwin: 2. Perhaps try the param mentioned here This still tries to compile the ade module, so I had to remove all gapi and ade sections from.
Try MinGW instead. So only toolchains with -posix flavour will work. Cygwin bundles OpenCV 2. Is this possible to do in Cygwin? Could I, for example, call cmake with -posix? The recommended fix for Jellyfish is to configure with.
Don't forget to make a clean build purge previous build directory. Am I able to use the mingw compiler from within Cygwin, or is it only available within the MinGW environment? This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search.
There are a few options for acquiring an aligned block of memory but they're very similar and the issue mostly boils down to what language standard and platforms you're targeting. Based on source code released by Intel, this seems to be the method of allocating aligned memory their engineers prefer but I can't find any documentation comparing it to other methods.
The closest I found simply acknowledges that other aligned memory allocation routines exist. You can use free as you always do. But pay attention to the parameter profile:. For example, the following statement requests a byte aligned memory block for 8 floating point elements.
Can it have a slight performance advantage? Historical accident? Thus, a compiler-specific but OS-agnostic solution was chosen.
C11 is a great solution but Microsoft doesn't even support C99 yet, so who knows if they will ever support C This allows this API to use a separate heap manager from the default one. Disclaimer: I work for Intel but have no special knowledge of these decisions, which happened long before I joined the company. If an aligned-allocate function is allowed to use the internals of the malloc and free functions, however, that may eliminate the need for the extra layer of wrapping.
I would suggest that the most portable way to write code would probably be to select a couple of symbols that are not used anywhere else for your own allocate and free functions, so that you could then say, e. For every system it should be possible to define macros or functions that will yield the necessary behavior [I think it's probably better to use macros consistently than to sometimes use macros and sometimes functions, so as to allow if defined macroname to test whether things are defined yet].
This will save memory when allocating types with alignment different to the default alignment typically 8 or 16 bytes. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.
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